Shuttle threader block



March 20, 1928.

. 1,663,070 A. DION SHUTTLE THREADER BLOCK Filed Jan. 13. 1927 2Sheets-Sheet 1 Ill Arseize Jim? Inventor 5 E "g By March 20, 1928.1,663,070

. A. DION SHUTTLE THREADER BLOCK Filed Jan, 15. 1927 Sheets-Sheet 3Invehtor Jam/1e Z2011 Attorneys Patented Mar. 20, 1928.

ARSEN'E' Dion, on BERKELEY, RHOIDE 'rsLAnn.

SHUTTLE 'THREADER 'IBLOGK.

Applicationfilcd' ian-uar ia, 1927. Serial No. 160,977.

The present invention'pertains to a novelshuttle threader block designedfor insertion in the front end of the shuttle block for looms. v

The principal object of the invention is the provision of a device ofthis character involving a novel construction designed to retain thethread in the block andto prevent it from becoming knotted in theoperation 'of the shuttle. With this object in view the threader blockcontains a coil adapted to receive the thread, the forward end of thecoil being characterized by. peculiarformations which prevent escape ofthe-thread except through the usual eye of the device,

The invention is fully disclosed in the following description and in theaccompanying. drawings in which:

Figure equipped with the novel threaderblock; Figure 2 is a sideelevation thereof; Figure 3 is a'plan view of the shuttle'with thethreader block removed;

Figure 4 is a section onthe line 4-4 of,

Figure 3;

Figure 5 is a side elevation of the threader block; 7

Figure 6 is a front elevation thereof;

Figure 7 isa section von the line 77 of Figure 6;

Figure 8 is a section on the line 8 8 "of Figure 5; n 1

Figure 9 is a: developed plan View of the sheet from which the coil ismade; and

Figure 10 is a detached perspective view of the coil.

Reference to these views will now be made by use of like characterswhich are employed to designate corresponding parts throughout.

In Figures 1, block 1 having ceiving the bobbin 3. the shuttle has acavity 4 in advance of the chamber 2 for receiving the shuttle threaderblock designated in general by the numeral 5. This member has alongitudinal slot 6 communicating with a lower longitudinal recess 7.The two sides 8 and 9 of the threader block, formed by the slot 6, areprovided with outwardly curved wings 10 and 11 respectively forfacilitating the entrance of the thread 12 into the slot.

To the top of the wing 11 is secured one 2, 3 and 4: is shown a shuttlethe usual chamber 2 for re- The forward end of edge of a sheet member13, preferably of 1 is a plan view of a. shuttle metal, the body ofwhich is disposed within the recess 7 andcoiled thereinas v'clearlyshown in FigureS. The inner ,edgeof the sheet, lying within the coil, isslantedor curved as at 14" with reference to tl'ieaxis of the coil asmay be seen by comparison of Figures 9 and 10. At the forward end of Vthe coil, thisedge has an inwardlyextending.

tongue lb -which formsa'notch 1 6 in conunction-with the edge 14.Directly, adja centand outwardly of the tongue15, the forward edge oft-hegcoil is formed with:

forwardly projecting tooth or. point 16' which, with the-p'tongue-15,for-ins anothernotch 17. Finally, another. notch l8 istcut in theforward 'edgej of thecoil and lies substa'ntially opposite the not-ch17with respect to the longitudinal axis of' the coil One side of thethreader block is formed t with anoutlet opening 19 connnunicating witha slot 20 through which the thread passes in order to enter the outlet;A pain of pins 21 are inserted in the block at opposite sides of theoutlet in order to aidsin,

guiding the thread and toprevent undue wear of the wood. I

Directly adjacent the as clearly shown in Figures 5' and 6. The blockalso has a fin 23 provided at'the same side and slightlyoverlappingiithe .point ofthc hookas shown Figured. The thread;

outlet opening the 'threader blockis formed with a. hook 22' eriblockhas an integral stem 2e1- projecting;

from its base and adapted for reception in a corresponding recess 25 cutin the base of the shuttle block. Also, the threader block formed with atransverse aperture 26 for receiving a securing pin 27 having its endsfixed in the sides: of the shuttle block.

A pin 28 is bridged across the central cavit'y'of the threader block,directly in advance of the coil and has its midpoint substantiallyinline with the longitudinal axis of the coil. Another pin 29 extends fromthe inner wall of the fin 23 to the opposite side of the threader block.This pin lies at a lower level than pin 28 or near the top of the hook22 as shown in Figures 6 and 7.

After the thread 12 has been passed into the slot 6 it follows a patharound the coil until passing beyond the edge 14 and into the interior.It 'is then drawn over the pins 28 and 29, through the hook 22 and outof the opening 19. /Vhen the thread is taut during travel of theshuttle, it is retained by the pin 28 substantially in the axis of thecoil as shown in Figure If the thread has a tendency to work its 'wayout of the coil, it first enters the notch 16 and is retained by thetongue 15. In the event that the thread does pass the tongue it will beheld by the tooth 16 in the notch 17. The last notch 18 holds the threadduring the first throw of the shuttle or if the thread in some waypasses the obstructions 15 and 16. It will be seen in Figure 6 that thethread passes beneath the pin 29 which prevents the thread from risingout of the hook 22. The fin 23, by overlapping the point of the hook,also holds the thread against escaping from the hook.

While a specific embodiment of the invention has been illustrated anddescribed, it is to be understood that various alterations in thedetails of construction ma be madewithout departing from the spiritofthe invention as indicated by theappended claims.

Having thus fully'described the invention, what I claim as new anddesire to protect by Letters Patent is: f

1. A shuttle threader block having a longitudinal slot and alongitudinal recess communicating with the slot, acoiled member disposedin the recess and having one end secured to one of the walls of saidslot, said member having a notch cut in the forward end thereof, saidmember having its inner edge slanted with reference to the longitudh nalaxis of the coil, and a tongue projecting inwardly from said edge anddisposed at the forward end of the coil.

2. A shuttle threader block having a longitudinal slot and alongitudinal recess communicating with the slot, a hook formed-inadvance of said slot, a fin projecting from the block and overlappingthe point of said hook, a coiled member disposed in the recess andhaving one end secured to one of the walls of said slot, said memberhaving a notch cut in the forward end thereof.

3. A shuttle threader block havinga longitudinal slot and a longitudinalrecess communicating with the slot, a hook formed inl advance of saidslot, a fin projecting from,

of the coil.

4. A shuttle threader block havinga longitudinal slot and a longitudinalrecess com municating with the slot, a coiled member disposed intherecess and having one end secured to one of the walls of said slot,said member having a notch cut in the forward end thereof, and a pinbridged across said recess in advance of said coil andhaving itsmidpoint substantially in line with the longitudinal axis of the coil.

5. A shuttle threader block having a longitudinal slot and alongitudinal recess communicatingwith the slot, a hook formed in advanceof said slot, a fin projecting from the block and overlapping the pointof saidhook, a coiled member disposed in the recess and having one endsecured to one of the walls of said slot, said member having a notch cutin the forward end thereof, a pin bridged across said recess in advanceof said coil and having its midpoint substantially in line with thelongitudinal axis of the coil, and another pin disposed at the top ofsaid hook.

said ed 'e and dis osed at the forward end In witness whereof I havehereunto set my hand. 7 V

ARSEN E DION.

